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Thus, fish A has a division time of 5 hours, and fish B has a division time of 10 hours. While fish A grows faster than fish B, the biomass yield of fish A (50% g biomass / g pellet) is lower than that of fish B (100 %).

If you chose to grow the fast fish, then your approach fits with the strategies to-date.
If you chose to grow the efficient fish, then your approach fits with PIARCS’ novel strategy.